Integers Test Paper Std 7

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  • Topic: Addition, Integer, Multiplication
  • Pages : 1 (265 words )
  • Download(s) : 819
  • Published : September 8, 2011
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1.Which integer will be obtained when 291 is multiplied with (−1)? 2.What will be the sign of the product, if we multiply 5 negative integers and 4 positive integers together? 3.Evaluate each of the following.

(a)– 2 x 3 – (3–4–8) ÷ 3
(b)3– (–6) –( –12 ÷ – 4)
(c)– 5 x8 + 6 x –3
(d)22 – 6 + (21 + 11)
(e)–5 –(–7) + 2 x –3
(f)8– 15 +2 x (– 3)
(g)– 2 x 3 =
(h)–5 x – 7 =
(i)–98 ÷ 13 =
(j)42 ÷ – 7 =
(k) – 55 ÷ – 5 =
4.Product of two integers is 5 less than 50. If one integer is – 9, find the other. 5.State true or false
(a)The result obtained on multiplying an integer with the additive identity of integers is the integer itself. (b)The result obtained on multiplying 4 negative integers and 5 positive integers is a positive integer. (c)The product of any integer with (−1) is the integer itself. (d)The result obtained on multiplying the additive inverse of an integer with 1 is a negative integer. (e)The result obtained on dividing 2 negative integers is positive. (f)When an integer is divided by (−1), the result obtained is equal to the additive inverse of the integer.

6.A shop owner earns a profit of Rs 30 on the sale of a pair of footwear and incurs a loss of Rs 20 on the sale of a purse. If he sold 9 pairs of footwear and 15 purses in a week, then how much was his profit/loss in that week?
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